Eight coins are tossed together and the occurrence of a head is termed a success. Write down the Binomial distribution of probabilities for the occurrence of 0, 1, 2 . . . . 8 heads. What is the arithmetic mean and what is the variance of this distribution?

In statistical analysis, the burden of proof lies traditionally with

A. alternative hypothesis

B. null hypothesis

C. analyst

D. facts

Business system consists

A. Target fixing

B. Markets

C. Business forecasting for products

D. All of the above

From the following statements choose the correct statements.
Statement I A statistic is a characteristic of a population.
Statement II The standard error of mean is the standard deviation of the sampling distribution.
Statement III The standard error of mean decreases in direct proportion to sample size.

A. Statements I and II are true

B. Statement II is true

C. Statements II and III are true

D. Statement III is true

. . . . . . . . processing is designed to process more than one type of transactions to bring out the specific business results in one or more business functions.

A. Transaction processing

B. Application processing

C. Data processing

D. Information processing